Seward, Block, and Chatterjee , professors at Harvard University, observed that traffic-light labeling and choice architecture interventions did not improve dietary quality among college students. Professor conducted a 7-week week intervention with traffic-light labeling and ‘healthy-plate” tray stickers to conduct their survey. The professor wanted to examine whether traffic-light labeling and choice architecture interventions improved dietary choices. The intended audience will be readers of the American Journal of Public Health. Researchers interested in studying labeling with food choices will found this article interesting, because it include detailed equations and statistics about labeling.
Seward, M. m., Block, J. P., & Chatterjee, A. (2016). A Traffic-Light Label Intervention and Dietary Choices in College Cafeterias. American Journal Of Public Health, 106(10), 1808-1814. doi:10.2105/AJPH.2016.303301